Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 2, August 1949)

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Demineralization of Photographic Wash Water by Ion Exchange

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 53, No. 2, pp. 183–192
Abstract: An ion exchange system has been developed to purify photographic wash water and allow its re-use. The effluent from a print-washing machine is cycled through a cation and then an anion exchange resin bed, and returned to the machine. The purity of the water obtained approaches that of distilled water. This unit was developed for the United States Signal Corps, to be used in mobile photographic units, and is designed to reduce the amount of water required for print-washing. This process is applicable not only to circumstances where water is scarce, but also to processes where wash-water purity and temperature control are important, as in color photography.
Publication Date: 1949-08-01
DOI: 10.5594/J16516
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J16516
Author(s): Harry P. GregorPolytechnic Institute of Brooklyn, Brooklyn, New York
N. N. ShermanPolytechnic Institute of Brooklyn, Brooklyn, New York
Copyright: © 1949 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Chemical Analysis of Photographic Developers and Fixing Baths [Active]
(1) Gregor H. P. Bregman J. I. , “Characterization of ion exchange resins,” J. Amer. Chem. Soc. , vol. 70 , pp. 2370 – 2373 ; February, 1948 . EXTERNAL

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Harry P. Gregor and N. N. Sherman; Demineralization of Photographic Wash Water by Ion Exchange, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 2, August 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J16516

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Harry P. Gregor and N. N. Sherman; Demineralization of Photographic Wash Water by Ion Exchange, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 2, August 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J16516

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<span class="citation">Harry P. Gregor and N. N. Sherman; <cite>Demineralization of Photographic Wash Water by Ion Exchange</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 2, August 1949); SMPTE, 1949. Available at <a href="https://doi.org/10.5594/J16516" target="_blank" rel="noopener">https://doi.org/10.5594/J16516</a></span>

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<li>
Harry P. Gregor and N. N. Sherman; <cite id="bib-10-5594-j16516">Demineralization of Photographic Wash Water by Ion Exchange</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 2, August 1949); SMPTE, 1949
<span class="doi">10.5594/J16516</span>
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